package com.imooc.miaosha.controller;

import com.imooc.miaosha.domain.MiaoshaUser;
import com.imooc.miaosha.redis.GoodsKey;
import com.imooc.miaosha.redis.RedisService;
import com.imooc.miaosha.result.Result;
import com.imooc.miaosha.service.GoodsService;
import com.imooc.miaosha.service.MiaoshaUserService;
import com.imooc.miaosha.vo.GoodsDetailVo;
import com.imooc.miaosha.vo.GoodsVo;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.thymeleaf.spring4.context.SpringWebContext;
import org.thymeleaf.spring4.view.ThymeleafViewResolver;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;

@Controller
@RequestMapping("/goods")
public class GoodsController {

    @Autowired
    MiaoshaUserService userService;
    @Autowired
    GoodsService goodsService;
    @Autowired
    RedisService redisService;
    @Autowired
    ThymeleafViewResolver thymeleafViewResolver;

    @Autowired
    ApplicationContext applicationContext;
//    @RequestMapping("/to_list")
//    public String list(Model model, @CookieValue(value=MiaoshaUserService.COOKI_NAME_TOKEN,required = false) String cookieToken,
//                       @RequestParam(value=MiaoshaUserService.COOKI_NAME_TOKEN,required = false) String paramToken) {
//        if(StringUtils.isEmpty(cookieToken) && StringUtils.isEmpty(paramToken)){
//            return "login";
//        }
//        String token = StringUtils.isEmpty(paramToken)? cookieToken:paramToken;
//        MiaoshaUser miaoshaUser = userService.getByToken(token);
////        model.addAttribute("user", user);
//        model.addAttribute("user",miaoshaUser);
//        return "goods_list";
//    }
    /*
     改进前：QPS:2672
     改进后：QPS:10070
     */
      @RequestMapping(value="/to_list",produces="text/html")
      @ResponseBody
      public String list(HttpServletRequest request, HttpServletResponse response, Model model, MiaoshaUser user) {
            model.addAttribute("user", user);
            //取缓存
          String html = redisService.get(GoodsKey.getGoodsList,"",String.class);
          if(!StringUtils.isEmpty(html)) {
              return html;
          }
          //查询商品列表
          List<GoodsVo> goodsList = goodsService.listGoodsVo();
          model.addAttribute("goodsList", goodsList);
//            return "goods_list";
          SpringWebContext ctx = new SpringWebContext(request,response,
                  request.getServletContext(),request.getLocale(), model.asMap(), applicationContext );
          //手动渲染
          html = thymeleafViewResolver.getTemplateEngine().process("goods_list", ctx);
          if(!StringUtils.isEmpty(html)) {
              redisService.set(GoodsKey.getGoodsList, "", html);
          }
          return html;
      }
//    @RequestMapping("/to_detail/{goodsId}")
//    public String detail(Model model,MiaoshaUser user,
//                         @PathVariable("goodsId")long goodsId) {
//        model.addAttribute("user", user);
//
//        GoodsVo goods = goodsService.getGoodsVoByGoodsId(goodsId);
//        model.addAttribute("goods", goods);
//
//        long startAt = goods.getStartDate().getTime();
//        long endAt = goods.getEndDate().getTime();
//        long now = System.currentTimeMillis();
//
//        int miaoshaStatus = 0;
//        int remainSeconds = 0;
//        if(now < startAt ) {//秒杀还没开始，倒计时
//            miaoshaStatus = 0;
//            remainSeconds = (int)((startAt - now )/1000);
//        }else  if(now > endAt){//秒杀已经结束
//            miaoshaStatus = 2;
//            remainSeconds = -1;
//        }else {//秒杀进行中
//            miaoshaStatus = 1;
//            remainSeconds = 0;
//        }
//        model.addAttribute("miaoshaStatus", miaoshaStatus);
//        model.addAttribute("remainSeconds", remainSeconds);
//        return "goods_detail";
//    }
//}
@RequestMapping(value="/to_detail2/{goodsId}",produces="text/html")
@ResponseBody
public String detail2(HttpServletRequest request, HttpServletResponse response, Model model,MiaoshaUser user,
                      @PathVariable("goodsId")long goodsId) {
    model.addAttribute("user", user);

    //取缓存
    String html = redisService.get(GoodsKey.getGoodsDetail, ""+goodsId, String.class);
    if(!StringUtils.isEmpty(html)) {
        return html;
    }
    //手动渲染
    GoodsVo goods = goodsService.getGoodsVoByGoodsId(goodsId);
    model.addAttribute("goods", goods);

    long startAt = goods.getStartDate().getTime();
    long endAt = goods.getEndDate().getTime();
    long now = System.currentTimeMillis();

    int miaoshaStatus = 0;
    int remainSeconds = 0;
    if(now < startAt ) {//秒杀还没开始，倒计时
        miaoshaStatus = 0;
        remainSeconds = (int)((startAt - now )/1000);
    }else  if(now > endAt){//秒杀已经结束
        miaoshaStatus = 2;
        remainSeconds = -1;
    }else {//秒杀进行中
        miaoshaStatus = 1;
        remainSeconds = 0;
    }
    model.addAttribute("miaoshaStatus", miaoshaStatus);
    model.addAttribute("remainSeconds", remainSeconds);
//        return "goods_detail";

    SpringWebContext ctx = new SpringWebContext(request,response,
            request.getServletContext(),request.getLocale(), model.asMap(), applicationContext );
    html = thymeleafViewResolver.getTemplateEngine().process("goods_detail", ctx);
    if(!StringUtils.isEmpty(html)) {
        redisService.set(GoodsKey.getGoodsDetail, ""+goodsId, html);
    }
    return html;
}

    @RequestMapping(value="/detail/{goodsId}")
    @ResponseBody
    public Result<GoodsDetailVo> detail(HttpServletRequest request, HttpServletResponse response, Model model, MiaoshaUser user,
                                        @PathVariable("goodsId")long goodsId) {
        GoodsVo goods = goodsService.getGoodsVoByGoodsId(goodsId);
        long startAt = goods.getStartDate().getTime();
        long endAt = goods.getEndDate().getTime();
        long now = System.currentTimeMillis();
        int miaoshaStatus = 0;
        int remainSeconds = 0;
        if(now < startAt ) {//秒杀还没开始，倒计时
            miaoshaStatus = 0;
            remainSeconds = (int)((startAt - now )/1000);
        }else  if(now > endAt){//秒杀已经结束
            miaoshaStatus = 2;
            remainSeconds = -1;
        }else {//秒杀进行中
            miaoshaStatus = 1;
            remainSeconds = 0;
        }
        GoodsDetailVo vo = new GoodsDetailVo();
        vo.setGoods(goods);
        vo.setUser(user);
        vo.setRemainSeconds(remainSeconds);
        vo.setMiaoshaStatus(miaoshaStatus);
        return Result.success(vo);
    }


}
